WO2007055576A1 - A coupling device for a tube - Google Patents

A coupling device for a tube Download PDF

Info

Publication number
WO2007055576A1
WO2007055576A1 PCT/NL2006/050280 NL2006050280W WO2007055576A1 WO 2007055576 A1 WO2007055576 A1 WO 2007055576A1 NL 2006050280 W NL2006050280 W NL 2006050280W WO 2007055576 A1 WO2007055576 A1 WO 2007055576A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure element
tube
segment
coupling device
element segment
Prior art date
Application number
PCT/NL2006/050280
Other languages
English (en)
French (fr)
Inventor
Andreas Jacobus Louis Nijsen
Original Assignee
Georg Fischer Waga N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE602006016977T priority Critical patent/DE602006016977D1/de
Priority to AT06812739T priority patent/ATE481593T1/de
Priority to DK06812739.8T priority patent/DK1948986T3/da
Priority to CA002627602A priority patent/CA2627602A1/en
Priority to CN2006800419856A priority patent/CN101305233B/zh
Priority to PL06812739T priority patent/PL1948986T3/pl
Priority to US12/093,447 priority patent/US9334990B2/en
Priority to SI200630848T priority patent/SI1948986T1/sl
Application filed by Georg Fischer Waga N.V. filed Critical Georg Fischer Waga N.V.
Priority to BRPI0618515-0A priority patent/BRPI0618515B1/pt
Priority to EP06812739A priority patent/EP1948986B1/en
Priority to JP2008539953A priority patent/JP4979141B2/ja
Publication of WO2007055576A1 publication Critical patent/WO2007055576A1/en
Priority to NO20082554A priority patent/NO20082554L/no
Priority to HK09103544.6A priority patent/HK1125991A1/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members

Definitions

  • the present invention relates to a coupling device for a tube, comprising at least one pressure element for exerting a clamping force on the tube, wherein the same is provided with at least one sealing organ wherein, at the side facing away from the tube, the said at least one pressure element is embodied with surfaces that converge towards each other in a radial orientation away from the tube, and that further support elements are provided that can be coupled to each other and are designed to be placed directly or indirectly against said surfaces of the at least one pressure element, so as to provide the clamping force on the tube.
  • Said support elements are usually embodied as support walls; however, an embodiment with support edges pro- viding a line contact is also useful.
  • the support elements will hereinafter be assumed to be embodied as support walls.
  • the converging surfaces of the pressure element may be flat, concave or convex.
  • a coupling device in accordance with the preamble is known from each of the Patent Abstracts of Japan volume 1998, no. 14 & JP no. 10/259890, and from the European patent specification EP-A-O 794 378.
  • JP 10/259890 a sealing ring is used placed directly against a one-piece pressure ring, which pressure ring possesses surfaces that converge in a radial orientation towards each other.
  • a sealing organ in the form of a rubber element is provided between on the one side the pressure element, and on the other side a support wall and the tube to be clamped. Furthermore, the pressure element of the prior art coupling device, is provided with a friction-increasing surface on the side facing the tube.
  • the invention be applicable for coupling devices of various designs and embodiment.
  • the at least one pressure element used in the coupling device may be a one-piece ring to be placed around the tube.
  • a construction for this purpose is known, for example, from the American patent specification US-A-4 886 304.
  • the coupling device is characterised in that the at least one pressure element is embodied in segments and to this end comprises at least a first pressure element segment and a second pressure element segment, wherein the first pressure element segment is placed proximally and the second pressure element segment distally with respect to the tube, and wherein the first and the second pressure element segments are provided with contact surfaces placed to abut to, and co-operate with each other at a predetermined incline in relation to the longitudinal axis of the tube, and in that the sealing organ is embodied as rubber sealing element, which is placed at least partly between a support element and the segmented pressure element on the one side, and on the other side the tube and the segmented pressure element.
  • This construction of the coupling device according to the invention makes it possible during tension strain between the coupling and the tube that the sealing organ improves the sealing action in all respects .
  • a special embodiment of the coupling device according to the invention is characterised, in that a third pressure element segment is provided possessing at a first side a support element, and wherein at a second side opposite the first side both the first pressure element segment and the second pressure element segment are provided. This may produce a useful alternative for the above-discussed basic embodiment of the coupling device according to the invention.
  • this be provided at least partly between a support element and the third pressure element segment on the one side and the tube and the third pressure element segment on the other side.
  • the first pressure element segment be provided with a projection limiting the movement of the second pressure element segment.
  • This projection is particularly useful for increasing the force that the co-operating support walls exert on the at least one pressure element. Due to the inclining contact surfaces of the separate pressure element segments, the absence of this projection could mean that the mutual positioning of these pressure element segments cannot be guaranteed.
  • the first pressure element segment be embodied with a friction-increasing surface at the side facing towards the tube.
  • the coupling device comprises a sleeve part 1 with an insert end 2 for the tube 10 and at least one pressure element 3 for exerting a clamping force on the tube 10.
  • the pressure element 3 co-operates with a sealing organ 12, usually an element made of rubber, providing the actual seal around the tube 10.
  • the at least one pressure element 3 is further provided with surfaces that converge in the radial direction, whose orientation corresponds to the orientation of the support walls 9 and 11.
  • the converging surfaces of the pressure element 3 may be flat, concave or convex.
  • the above-mentioned support walls 9 and 11 can be mutually coupled by means of bolt and nut element 8, such that when this bolt and nut element 8 is tightened, the support walls 9 and 11 clampingly press the at least one pressure element 3 onto the tube 10.
  • Both Fig. 1 and Fig. 2 show that the at least one pressure element 3 is embodied in segments.
  • Fig. 1 shows the embodiment wherein the at least one pressure element 3 comprises a first pressure element segment 5 and a second pressure element segment 4, wherein the first pressure element segment 5 is proximally, and the second pressure element segment 4 is distally positioned with respect to the tube 10.
  • the first and the second pressure element segments 4, 5 are provided with co-operating contact surfaces 7 placed to abut to each other, which have a predetermined incline in respect to the longitudinal axis 14 of the tube 10.
  • Fig. 1 shows that the incline of the contact surfaces 7 is designed such that when the tube 10 is under tension strain in the direction of arrow A, the first pressure element segment 5 is caused to clamp the tube 10 more tightly.
  • the incline of the contact surfaces 7 is further designed such that when the tube 10 is under said tension strain in the direction of arrow A, the second pressure element segment 4 exerts an increased force on the support walls 9 and 11.
  • the sealing organ 12 is preferably embodied as rubber sealing element placed at least partly between a support wall 9 and the segmented pressure element 3 on the one side, and the tube 10 and the segmented pressure element 3 on the other side.
  • Fig. 2 shows an alternative embodiment of the coupling device according to the invention, wherein the same is embodied with a third pressure element segment 6.
  • a third pressure element segment 6 At a first side of this third pressure element 6 there is a support wall 9, while at a second side, opposite the first side of this third pressure element segment 6, the first pressure element segment 5 as well as the second pressure element segment 4 are provided.
  • the incline of the contact surfaces 7 is in this embodiment also designed such that when the tube 10 is under tension strain in the direction of arrow A, the first pressure element segment 5 clamps the tube more tightly.
  • the second pressure element segment 4 will exert an increased force on the support walls 9, 11, but now partly through the third pressure element segment 6.
  • Fig. 2 shows a further preferred embodiment, wherein the first pressure element segment 5 possesses a projection 15 limiting the movement of the second pressure element segment 4.
  • the first pressure element segment 5 is shown to be provided with a friction- increasing surface 13 at the side facing towards the tube 10.
  • friction-increasing surface 13 may be embodied as inlay or alternatively, that this friction-increasing surface 13 may form an integral part of the first pressure element segment 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Earth Drilling (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints With Sleeves (AREA)
  • Gasket Seals (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
PCT/NL2006/050280 2005-11-11 2006-11-06 A coupling device for a tube WO2007055576A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US12/093,447 US9334990B2 (en) 2005-11-11 2006-11-06 Coupling device for a tube
DK06812739.8T DK1948986T3 (da) 2005-11-11 2006-11-06 Koblingsindretning til et rør
CA002627602A CA2627602A1 (en) 2005-11-11 2006-11-06 A coupling device for a tube
CN2006800419856A CN101305233B (zh) 2005-11-11 2006-11-06 用于管子的连接装置
PL06812739T PL1948986T3 (pl) 2005-11-11 2006-11-06 Urządzenie łączące do rury
DE602006016977T DE602006016977D1 (de) 2005-11-11 2006-11-06 Kupplungsvorrichtung für ein rohr
SI200630848T SI1948986T1 (sl) 2005-11-11 2006-11-06 Sklopna naprava za cev
AT06812739T ATE481593T1 (de) 2005-11-11 2006-11-06 Kupplungsvorrichtung für ein rohr
BRPI0618515-0A BRPI0618515B1 (pt) 2005-11-11 2006-11-06 Dispositivo de acoplamento para um tubo
EP06812739A EP1948986B1 (en) 2005-11-11 2006-11-06 A coupling device for a tube
JP2008539953A JP4979141B2 (ja) 2005-11-11 2006-11-06 管用連結装置
NO20082554A NO20082554L (no) 2005-11-11 2008-06-09 Koblingsinnretning for et ror
HK09103544.6A HK1125991A1 (en) 2005-11-11 2009-04-17 A coupling device for a tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1030404A NL1030404C2 (nl) 2005-11-11 2005-11-11 Koppelinrichting voor een buis.
NL1030404 2005-11-11

Publications (1)

Publication Number Publication Date
WO2007055576A1 true WO2007055576A1 (en) 2007-05-18

Family

ID=36922092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2006/050280 WO2007055576A1 (en) 2005-11-11 2006-11-06 A coupling device for a tube

Country Status (19)

Country Link
US (1) US9334990B2 (zh)
EP (1) EP1948986B1 (zh)
JP (1) JP4979141B2 (zh)
CN (1) CN101305233B (zh)
AT (1) ATE481593T1 (zh)
BR (1) BRPI0618515B1 (zh)
CA (1) CA2627602A1 (zh)
DE (1) DE602006016977D1 (zh)
DK (1) DK1948986T3 (zh)
ES (1) ES2352854T3 (zh)
HK (1) HK1125991A1 (zh)
NL (1) NL1030404C2 (zh)
NO (1) NO20082554L (zh)
PL (1) PL1948986T3 (zh)
PT (1) PT1948986E (zh)
RU (1) RU2406908C2 (zh)
SI (1) SI1948986T1 (zh)
WO (1) WO2007055576A1 (zh)
ZA (1) ZA200803922B (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9816648B2 (en) 2012-12-10 2017-11-14 Georg Fischer Waga N.V. Coupling device for a tube
EP3892905A1 (en) 2017-11-16 2021-10-13 Georg Fischer WAGA N.V. Coupling device
WO2022003413A1 (en) * 2020-06-30 2022-01-06 Fucoli-Somepal - Fundição De Ferro S. A. Pipe coupling and restraining device
AT524049A4 (de) * 2020-12-15 2022-02-15 E Hawle Armaturenwerke Gmbh Rohrverbindungsvorrichtung mit einem dichtungsträger
US11421783B2 (en) 2019-07-18 2022-08-23 Winfried Felber Spreader structure for a ring seal for sealing an annular gap

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101286658B1 (ko) 2011-10-25 2013-07-16 주식회사 하이스텐 파이프 클램프
EP2664833B1 (en) * 2012-05-14 2016-04-27 Trelleborg Pipe Seals Lelystad BV Restraint Seal
GB201312284D0 (en) 2013-07-09 2013-08-21 Crane Ltd Pipe connection
GB2554889B (en) * 2016-10-12 2019-01-02 Poulton Tech Limited A seal assembly
JP7217201B2 (ja) * 2019-05-24 2023-02-02 コスモ工機株式会社 継手の接続方法及びその継手
WO2021102318A1 (en) 2019-11-22 2021-05-27 Trinity Bay Equipment Holdings, LLC Reusable pipe fitting systems and methods
CN112938511B (zh) * 2021-02-18 2023-02-24 珠海格力智能装备有限公司 夹具及具有其的码垛机器人
CN116066638B (zh) * 2023-03-06 2023-06-20 山东工程技师学院 一种建筑用漏水预警管道连接装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886304A (en) 1987-02-18 1989-12-12 Victaulic Company Of America Abrasive grip pipe coupling
WO1990007671A1 (en) 1988-12-23 1990-07-12 Parkfield Group Plc Pipe coupling
EP0690256A1 (en) 1994-07-01 1996-01-03 Victaulic Plc Gripping element for a pipe coupling
EP0794378A2 (en) 1996-03-04 1997-09-10 Georg Fischer WAGA N.V. A coupling device
JPH10259890A (ja) 1997-01-16 1998-09-29 Kubota Corp 管継手構造
US20050230972A1 (en) * 2004-04-19 2005-10-20 United States Pipe And Foundry Company. Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets

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US2779610A (en) * 1950-05-23 1957-01-29 Dresser Ind Sealed pipe coupling with constrictible wedge bushing
US2772100A (en) * 1953-01-15 1956-11-27 Kreissig Ernst Pipe end connection and sealing system with centering means
US2758852A (en) * 1953-01-16 1956-08-14 Dresser Ind Coupling for threadless pipe with independent sealing and gripping means
US3155403A (en) * 1959-06-10 1964-11-03 Gutehoffnungshuette Sterkrade Scavenging head assembly for rotary drilling apparatus
US3606348A (en) * 1970-03-11 1971-09-20 Arthur T Taylor Seals
US4070046A (en) * 1976-11-01 1978-01-24 Coupling Systems, Inc. Pipe and tubing connecting sleeve
CN1105432A (zh) * 1994-09-19 1995-07-19 Ck金属株式会社 管子连接结构
US5803513A (en) * 1996-06-13 1998-09-08 Richardson; Robert J. Restrained sealed bolted joints of fluid piping systems, inclusive of an improved gland, an added compression control ring, and/or added skid pads placed on a grip ring
US6019396A (en) * 1997-08-27 2000-02-01 Waterworks Technology Development Organization Co., Ltd. Pipe connecting apparatus
JP2001349480A (ja) * 2000-06-07 2001-12-21 Kubota Corp 離脱防止継手
GB2363437B (en) * 2000-06-13 2004-08-11 Glynwed Pipe Systems Ltd Method and apparatus for coupling pipe ends and a sealing and gripping assembly for the apparatus
DE10241921B3 (de) * 2002-09-10 2004-01-29 Eaton Fluid Power Gmbh Hochdichte Anschlusseinrichtung
US7354073B2 (en) * 2004-03-30 2008-04-08 Waterworks Technology Development Organization, Co., Ltd. Pipe joint

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886304A (en) 1987-02-18 1989-12-12 Victaulic Company Of America Abrasive grip pipe coupling
WO1990007671A1 (en) 1988-12-23 1990-07-12 Parkfield Group Plc Pipe coupling
EP0690256A1 (en) 1994-07-01 1996-01-03 Victaulic Plc Gripping element for a pipe coupling
EP0794378A2 (en) 1996-03-04 1997-09-10 Georg Fischer WAGA N.V. A coupling device
JPH10259890A (ja) 1997-01-16 1998-09-29 Kubota Corp 管継手構造
US20050230972A1 (en) * 2004-04-19 2005-10-20 United States Pipe And Foundry Company. Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets

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* Cited by examiner, † Cited by third party
Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9816648B2 (en) 2012-12-10 2017-11-14 Georg Fischer Waga N.V. Coupling device for a tube
EP3892905A1 (en) 2017-11-16 2021-10-13 Georg Fischer WAGA N.V. Coupling device
US11421783B2 (en) 2019-07-18 2022-08-23 Winfried Felber Spreader structure for a ring seal for sealing an annular gap
WO2022003413A1 (en) * 2020-06-30 2022-01-06 Fucoli-Somepal - Fundição De Ferro S. A. Pipe coupling and restraining device
WO2022023785A1 (en) * 2020-06-30 2022-02-03 Fucoli-Somepal - Fundição De Ferro S. A. Pipe coupling and restraining device
AT524049A4 (de) * 2020-12-15 2022-02-15 E Hawle Armaturenwerke Gmbh Rohrverbindungsvorrichtung mit einem dichtungsträger
AT524049B1 (de) * 2020-12-15 2022-02-15 E Hawle Armaturenwerke Gmbh Rohrverbindungsvorrichtung mit einem dichtungsträger

Also Published As

Publication number Publication date
CN101305233B (zh) 2011-06-15
ZA200803922B (en) 2009-03-25
NO20082554L (no) 2008-07-28
US9334990B2 (en) 2016-05-10
PL1948986T3 (pl) 2011-03-31
CA2627602A1 (en) 2007-05-18
RU2406908C2 (ru) 2010-12-20
HK1125991A1 (en) 2009-08-21
CN101305233A (zh) 2008-11-12
JP4979141B2 (ja) 2012-07-18
ES2352854T3 (es) 2011-02-23
NL1030404C2 (nl) 2007-05-14
US20080303223A1 (en) 2008-12-11
EP1948986B1 (en) 2010-09-15
JP2009516131A (ja) 2009-04-16
RU2008123596A (ru) 2009-12-20
BRPI0618515A2 (pt) 2011-09-06
ATE481593T1 (de) 2010-10-15
BRPI0618515B1 (pt) 2020-09-01
PT1948986E (pt) 2010-11-30
DE602006016977D1 (de) 2010-10-28
EP1948986A1 (en) 2008-07-30
DK1948986T3 (da) 2011-01-10
SI1948986T1 (sl) 2011-01-31

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